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Proceedings Paper

Security holograms employing perspectival anamorphosis and stereoscopy
Author(s): Ivo Aubrecht
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Paper Abstract

A holographic diffraction structure that features stereoscopic pair of records with distorted perspective in the plane of the structure is designed and realized. On normal illumination and oblique binocular observation, the structure provides illusion of seeing an image oriented upright to its plane and located under it. The structure can be used as security DOVID.

Paper Details

Date Published: 3 May 2013
PDF: 8 pages
Proc. SPIE 8776, Holography: Advances and Modern Trends III, 877609 (3 May 2013); doi: 10.1117/12.2017386
Show Author Affiliations
Ivo Aubrecht, Police Presidium CR (Czech Republic)

Published in SPIE Proceedings Vol. 8776:
Holography: Advances and Modern Trends III
Miroslav Hrabovský; John T. Sheridan; Antonio Fimia-Gil, Editor(s)

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